John Patrick Mahon (February 2, 1938 - May 3, 2020) was an American film, stage and television actor. He was known for Armageddon (1998), L.A. Confidential (1997) and Zodiac (2007).
Top Movie Cast
A Killing Affairtrue- Det. Shoup
1977-09-21
5.2
Someone's Watching Me!true- Frimsin
1978-11-29
6.2
The American Presidenttrue- Chairman of the Joint Chiefs
1995-11-17
6.5
Six Against the Rocktrue- Officer Bill Miller
1987-05-18
4.9
L.A. Confidentialtrue- Police Chief
1997-09-19
7.8
Armageddontrue- Karl
1998-07-01
6.8
Just Ask My Childrentrue- Judge Ferguson
2001-09-10
6.5
Betrayed by Innocencetrue- Bailiff
1986-03-01
5.5
Austin Powers: The Spy Who Shagged Metrue- NATO Colonel
1999-06-08
6.3
The Exorcisttrue- Language Lab Director
1973-12-26
7.7
Zodiactrue- Riverside Captain
2007-03-02
7.5
A Call to Armstrue- Major General Cosgrove USMC
2009-03-13
6.0
One False Movetrue- Chief Jenkins
1992-05-08
6.6
Final Shot: The Hank Gathers Storytrue- LMU Coach
1992-04-01
0.0
The People Under the Stairstrue- Police Sergeant
1991-11-01
6.5
The Couch Triptrue- Police Captain
1988-01-15
5.4
Collision Course: Truman vs. MacArthurtrue- Gen. Hoyt Vandenberg
1976-01-04
0.0
Victims for Victims: The Theresa Saldana Storytrue